Spoiled with the attention of tourists and a wealth of natural beauty, Zakynthos boasts yet another special attraction. On the island’s northern coast, 35 kilometers from capital-city Zakynthos, lie the Blue Caves – a unique natural grotto that’s partially filled with water and only accessible by sea. The penetrating rays of the sun are refracted and illuminate the cave in myriads of stunning flecks. The water here is startlingly clear, and the depth to the bottom reaches four meters. The Greeks recommend visiting the Blue Caves early in the morning or closer to sunset, when the interplay of light and water is particularly enchanting.